Hardware

The signal these satellites broadcast is right-hand circular-polarized, which means you won’t be able to pick it up using the little antenna that came with your SDR dongle. A few antenna options are available to you, including a turnstile antenna, a quadrifilar helix antenna, or a V-dipole antenna. (For a more in-depth discussion of these and a few other antenna designs, make sure you check out the chapter on antenna theory and design.)

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Although all of these options will work without any problems, it turns out that the easiest option to ...

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